Daikin CTXU25G2V1B Service Manual page 107

Troubleshooting
104
Continued from
the previous
page
Operation lamp flashes?
NO
Is an error code
displayed on the remote
controller?
NO
Does it operate
on test operation
mode?
YES
Diagnose the indoor unit and the
outdoor unit by LED
YES
YES
Diagnose by an error code
NO
SiBE12-908
Go to troubleshooting.
Replace the outdoor unit
PCB.
Go to LED diagnosis.
(investigate the symptoms)
(R9421)
Service Diagnosis